Magnets, how do they work? (part 5)

(The last piece to the puzzle. Previous sections can by found here: Part 1: Magnetic Field, Part 2: Magnetic Dipoles, Part 3: Magnetic Force, Part 4: Quantum Mechanical Spin) This post has been sitting on the back burner for a very long time now. I established the physical theory for what a magnetic field is […]

The Classical version of NMR

As I’ve been delving quite deeply into numerical solutions of quantum mechanics lately, I thought I would take a step back and write about something a little less… well… less. One thing about quantum mechanics that is sometimes a bit mind-boggling is that classical interpretations of certain systems can be helpful to understand things about […]

Magnets, how do they work? (part 4)

(footnote: here lies Quantum Mechanical Spin) This post continues the discussion of how ferromagnets work as considered in part 1, part 2 and part 3. The previous parts dealt with the basics of electromagnetism, introducing the connections from Maxwell’s equations to the magnetic field, illustrating the origin of the magnetic dipole and finally demonstrating how […]

Magnets, how do they work? (part 3)

(Previous sections: Part 1: Magnetic field, Part 2: Magnetic Dipoles) In this section I intend to detail the source of magnetic force, particularly as experienced by loops of wire in the form of magnetic dipoles. The intent here is to address ultimately how compass needles turn and how ferromagnets attract each other. I should start […]

Magnets, how do they work? (part 2)

(Previous post: Part 1: Magnetic field) I will talk about the origin of the magnetic dipole construct here. Consider a loop of wire… You may have noticed that I posted an entry entitled “NMR and Spin flipping (part 2)” which has since disappeared. It turns out that wordpress doesn’t synch so well between its mobile […]

Magnets, how do they work? (part 1)

Subtitle: Basic derivation of Ampere’s Law from the Biot-Savart equation. Know your meme. It’s been a while since this became a thing, but I think it’s actually a really good question. Truly, the original meme exploded from an unlikely source who wanted to relish in appreciating those things that seem magical without really appreciating how […]